lec 2 Flashcards Preview

Neuroanatomy > lec 2 > Flashcards

Flashcards in lec 2 Deck (16)
Loading flashcards...
1
Q

membranous neurocranium originate from ?

A

“cranial neural crest cells”

2
Q

how can calvarial (skull cap) remodeled and what is the importance ?

A

Remodeled by : becaus of softness of the bone + loose connections at suture
imposrtance : for molding of fatal cranium.

3
Q

origin of certilegenous neurocranium ?

A

occipital somite , neural crest cells

4
Q

write the development of the parts of bisalis interna?

A

1- body of sphenoid => hypophyseal cartliges
2-greater wings of sphenoid => ala temporalis
3- lesser wing of sphenoid =>ala orbitalis
4- petrius and mastoid part of temporal bones => periotic capsule
[ later they all fuse except the opening of which cranial nerve leave ]

5
Q

how can we obtain blood sample from infant ?

A

by taking sample from SSS fron palpable anterior fontanelle area

6
Q

failure of cranial neuropore to close is ?

A

cranio-schisis

7
Q

the forms of cranio-schisis that may survive is ?

A

1- meningiocele or meningioencephalocele

8
Q

scaphocephaly is :

A

premature closure of sagittal suture

9
Q

acrocephaly is

A

premature closure of coronal suture

10
Q

tower skull is

A

is acrocephaly

11
Q

microcephaly caused by

A

fail of growth of the brain + fail of skull to expand

12
Q

premature closure of lambdoid and coronal suture on one side of the skull is ?

A

plagio-cephaly

13
Q

premature closure of all suture is

A

kleeblattchadel

14
Q

kleeblattchadel shape result from

A

forcing the brain growth through anterior and sphenoid fontanell

15
Q

newborn baby presented with craniosyntosis , midface hypoplasia , shallow orbit , acular proptosis , mandibular proganthisim , progressive hydrocephalus , with no mental retardation .
what is your diagnosis ?

A

crouzon syndrome

16
Q

newborn baby presented with craiosyntosis , syndactile of hand and feet , broad thumbs , graet feet .
what is your diagnosis ?

A

pfeiffer syndrome